A hunter fires a gun at a point 408 m away from a cliff. If
PHYSICS
WAEC 2022
A hunter fires a gun at a point 408 m away from a cliff. If he hears an echo 2.4 s later, determine the speed of the sound wave
- A. 340 ms\(^{-1}\)
- B. 380 m s\(^{-1}\)
- C. 400 m s\(^{-1}\)
- D. 680 m s\(^{-1}\)
Correct Answer: A. 340 ms\(^{-1}\)
Explanation
speed of the sound wave = \(\frac{distance * 2}{time}\)
= \(\frac{408 * 2}{2.4}\)
: speed of the sound wave = 340 ms\(^{-1}\)
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